Arduino for STM32

Can stm32f103 use as crypto miner and how much fast it is ?

as you said to increase Sampling frequency factor of 10. i had increased the frequency and it's working good but when i had increased the input frequency above 10KHz it's not working properly i also tried
Timer3.setPrescaleFactor(1);
Timer3.setOverflow(1);
but same problem. as other tool as in the ...

Edited and removed tft functions. The square wave frequency generated from another stm32f103 MCU and frequency measured with Digital Frequency Meter.

i am using stm32f103c8t6. i am working on osciloscope project the input frequency is 2KHz Square wave. the problem i getting is not showing proper square wave on arduino Serial plotter but when i change 2KHz into 99Khz the Serial Plotter showing Square Wave. is Arduino Code is Wrong ?





#include ...

So had any ideas for frequency upto 200Khz or 300khz ? Without using or alternatively pulseIn/pulseInLong ?

Need some idea or suggestion i want to read pulses fast as possible want to measure pulses upto 2MHz. The pulseIn/pulseInLong has limitions so it can not work greater than 100KHz.